Of course, that's the movie directed by Dick Powell in the Nevada desert at the time of the atomic tests where a larger than normal number of the cast and crew seem to have come down with cancer - Powell, Wayne, Hayward, Agnes Moorehead, Pedro Armendariz. Supposedly 91 of them got cancer (several were heavy smokers or may have had other factors) and 46 died.

Bortai: For me, there is no peace while you live, Mongol. Temujin: You're beautiful in your wrath.